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Low grade fever for over a month. Persistent Low Grade Fever: Causes, Symptoms, and Effective Treatments

What are the common causes of a persistent low grade fever. How can you recognize the symptoms of a lingering low-grade fever. What are the most effective treatments for a prolonged low-grade fever.

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Understanding Persistent Low Grade Fever: Definition and Significance

A persistent low grade fever is a condition where the body temperature remains slightly elevated, typically between 100.5°F and 102.2°F, for more than two weeks. This prolonged elevation in temperature often indicates that the body is actively fighting an underlying health issue. While a normal body temperature hovers around 98.6°F, it’s important to note that this can fluctuate throughout the day due to various factors.

The significance of a persistent low grade fever lies in its potential to signal ongoing health concerns that require attention. It serves as a valuable indicator for healthcare professionals to investigate further and identify the root cause of the body’s elevated temperature response.

How does a persistent low grade fever differ from other types of fevers?

Unlike high-grade fevers that can spike quickly and resolve within a few days, persistent low grade fevers are characterized by their duration and relatively modest temperature increase. This distinction is crucial for both diagnosis and treatment approaches.

  • Duration: Lasts more than two weeks
  • Temperature range: 100.5°F to 102.2°F
  • Onset: Often gradual
  • Resolution: May not resolve without addressing underlying cause

Recognizing the Symptoms: Beyond the Thermometer Reading

While an elevated temperature is the primary indicator of a persistent low grade fever, it’s often accompanied by a constellation of other symptoms. These additional signs can provide valuable clues about the underlying cause and help guide diagnostic efforts.

What are the common accompanying symptoms of a persistent low grade fever?

Individuals experiencing a persistent low grade fever may notice a range of associated symptoms, including:

  • Feeling warm to the touch
  • Sweating or chills
  • Shivering
  • Headaches
  • Muscle aches
  • Dehydration
  • General malaise or feeling unwell

It’s important to note that the severity and combination of these symptoms can vary significantly from person to person. Some individuals may barely notice their elevated temperature, while others might experience more pronounced discomfort.

Common Causes of Persistent Low Grade Fever: Unraveling the Mystery

A persistent low grade fever is often the body’s response to an underlying health issue. Identifying the root cause is crucial for effective treatment and resolution of the fever. Let’s explore some of the most common culprits behind this lingering temperature elevation.

Respiratory Infections: A Common Culprit

Respiratory infections are frequently associated with persistent low grade fevers. These infections can range from common colds to more severe conditions like influenza. The body’s immune response to these pathogens often results in an elevated temperature that persists until the infection is fully cleared.

Symptoms that may accompany a respiratory infection-induced fever include:

  • Coughing
  • Sneezing
  • Nasal congestion or runny nose
  • Sore throat
  • Fatigue
  • Loss of appetite

Many respiratory infections are viral in nature and resolve on their own with time and supportive care. However, persistent symptoms or worsening conditions may warrant medical attention to rule out more serious infections.

Urinary Tract Infections: An Often Overlooked Source

Urinary tract infections (UTIs) can be a sneaky cause of persistent low grade fevers, especially in women and older adults. These bacterial infections can occur anywhere in the urinary system, from the bladder to the kidneys.

In addition to a low grade fever, UTI symptoms may include:

  • Abdominal pain or discomfort
  • Burning sensation during urination
  • Frequent urge to urinate
  • Dark or cloudy urine
  • Strong-smelling urine

UTIs typically require antibiotic treatment to resolve. A healthcare provider can perform a urine analysis to confirm the diagnosis and prescribe the appropriate medication.

Less Common Causes: When the Usual Suspects Don’t Apply

While respiratory and urinary tract infections are frequent causes of persistent low grade fevers, there are several less common factors that should be considered when the usual explanations don’t fit.

Medication-Induced Fevers: An Unexpected Side Effect

Certain medications can trigger a low grade fever as a side effect. This phenomenon, known as drug fever, can occur with various types of drugs, including antibiotics, anticonvulsants, and even some over-the-counter medications.

Characteristics of medication-induced fevers:

  • Typically develop within 7-10 days of starting a new medication
  • Often resolve quickly (within 72 hours) after discontinuing the drug
  • May be accompanied by a rash or other allergic symptoms

If you suspect a medication may be causing your persistent low grade fever, it’s crucial to consult with your healthcare provider before making any changes to your prescribed regimen.

Stress-Related Fevers: The Mind-Body Connection

Chronic stress can manifest in physical symptoms, including a persistent low grade fever. This phenomenon, sometimes referred to as “psychogenic fever,” is more commonly observed in young women but can affect individuals of any age or gender.

Stress-induced fevers are often accompanied by other stress-related symptoms such as:

  • Fatigue
  • Irritability
  • Sleep disturbances
  • Digestive issues
  • Muscle tension

Addressing the underlying sources of stress through lifestyle changes, stress management techniques, or professional counseling can often help resolve these fevers.

When to Worry: Red Flags and Serious Underlying Conditions

While many cases of persistent low grade fever are caused by benign or easily treatable conditions, there are instances where they may signal more serious health concerns. Recognizing the red flags and knowing when to seek immediate medical attention is crucial for early intervention and optimal outcomes.

Cancer: A Rare but Serious Consideration

In rare cases, a persistent low grade fever with no apparent cause may be an early sign of certain types of cancer, particularly blood cancers like leukemia or lymphoma. While this is not a common cause, it’s important to be aware of the possibility, especially if other symptoms are present.

Potential cancer-related symptoms accompanying a persistent low grade fever:

  • Unexplained weight loss
  • Severe fatigue
  • Night sweats
  • Enlarged lymph nodes
  • Easy bruising or bleeding
  • Recurrent infections

It’s important to note that these symptoms can also be caused by many other, less serious conditions. However, if you experience a combination of these symptoms along with a persistent low grade fever, it’s essential to consult with a healthcare provider for a thorough evaluation.

When should you seek immediate medical attention for a persistent low grade fever?

While many cases of persistent low grade fever can be managed at home or with routine medical care, certain situations warrant immediate medical attention:

  • Fever accompanied by severe headache and neck stiffness
  • Fever with confusion or altered mental state
  • Fever in individuals with compromised immune systems
  • Fever accompanied by severe abdominal pain
  • Fever with difficulty breathing or chest pain

These symptoms could indicate more serious conditions such as meningitis, sepsis, or other life-threatening infections that require prompt medical intervention.

Diagnostic Approaches: Unraveling the Cause of Persistent Low Grade Fever

When faced with a persistent low grade fever, healthcare providers employ a systematic approach to identify the underlying cause. This process often involves a combination of patient history, physical examination, and various diagnostic tests.

What diagnostic tests are commonly used to investigate persistent low grade fevers?

Depending on the suspected cause and accompanying symptoms, healthcare providers may recommend one or more of the following diagnostic tests:

  1. Blood tests: Complete blood count, inflammatory markers, liver function tests
  2. Urine analysis and culture: To check for urinary tract infections
  3. Chest X-ray: To evaluate for respiratory infections or other lung abnormalities
  4. Blood cultures: To check for bloodstream infections
  5. Imaging studies: CT scans or MRIs to investigate potential sources of infection or inflammation
  6. Specialized tests: Such as tuberculosis screening or autoimmune disorder panels

The specific combination of tests will be tailored to each individual’s clinical presentation and medical history. In some cases, additional specialized tests may be necessary if initial investigations are inconclusive.

Treatment Strategies: Addressing Persistent Low Grade Fever

The treatment of a persistent low grade fever primarily focuses on addressing the underlying cause. Once the root issue is identified, healthcare providers can recommend appropriate interventions to resolve both the fever and its source.

How are persistent low grade fevers typically treated?

Treatment approaches for persistent low grade fevers vary depending on the underlying cause:

  • Infections: Bacterial infections are often treated with targeted antibiotics, while viral infections may require supportive care and time to resolve.
  • Medication-induced fevers: Discontinuation or adjustment of the offending medication under medical supervision.
  • Stress-related fevers: Stress management techniques, lifestyle modifications, or counseling may be recommended.
  • Autoimmune disorders: Immunosuppressive medications or other targeted therapies may be prescribed.
  • Cancer: Treatment plans will be developed based on the specific type and stage of cancer identified.

In addition to addressing the underlying cause, symptomatic relief may be provided through over-the-counter fever reducers like acetaminophen or ibuprofen. However, it’s important to note that these medications should be used judiciously and under medical guidance, as they may mask important diagnostic clues.

Are there any home remedies or lifestyle changes that can help manage a persistent low grade fever?

While addressing the underlying cause is crucial, certain home remedies and lifestyle modifications can help manage the symptoms of a persistent low grade fever:

  • Stay hydrated: Drink plenty of fluids to prevent dehydration
  • Rest: Allow your body time to recover and fight off any potential infections
  • Cool compresses: Apply to the forehead or neck to provide comfort
  • Dress in light, breathable clothing: To help regulate body temperature
  • Maintain a comfortable room temperature: Not too hot or cold
  • Eat nutritious foods: To support your immune system
  • Practice stress-reduction techniques: Such as meditation or deep breathing exercises

It’s important to remember that these measures are supportive and should not replace proper medical evaluation and treatment for persistent low grade fevers.

Prevention and Long-Term Management: Keeping Persistent Low Grade Fevers at Bay

While not all cases of persistent low grade fever can be prevented, there are steps you can take to reduce your risk and maintain overall health. Understanding these preventive measures and long-term management strategies is key to minimizing the occurrence of prolonged fevers.

What preventive measures can help reduce the risk of developing a persistent low grade fever?

Several lifestyle choices and habits can contribute to overall health and potentially reduce the risk of conditions that may lead to persistent low grade fevers:

  • Practice good hygiene: Regular handwashing and avoiding close contact with sick individuals can help prevent infections.
  • Maintain a healthy diet: A balanced diet rich in fruits, vegetables, and whole grains supports a strong immune system.
  • Stay physically active: Regular exercise can boost immune function and reduce stress.
  • Get adequate sleep: Proper rest is essential for maintaining a healthy immune system.
  • Manage stress: Chronic stress can weaken the immune system, so finding effective stress management techniques is crucial.
  • Stay up-to-date on vaccinations: This can help prevent various infections that might lead to persistent fevers.
  • Avoid unnecessary medications: Only take medications as prescribed and be aware of potential side effects.

While these measures can’t guarantee prevention of all persistent low grade fevers, they can significantly contribute to overall health and resilience against various underlying causes.

How should individuals with recurrent persistent low grade fevers approach long-term management?

For those who experience recurrent episodes of persistent low grade fever, long-term management strategies are essential:

  1. Maintain regular check-ups: Schedule routine visits with your healthcare provider to monitor your overall health and address any concerns promptly.
  2. Keep a symptom journal: Track your temperature, accompanying symptoms, and potential triggers to help identify patterns or trends.
  3. Follow treatment plans: If an underlying condition has been identified, adhere to prescribed treatments and follow-up appointments.
  4. Monitor for new symptoms: Be vigilant about any changes in your health and report them to your healthcare provider.
  5. Consider lifestyle modifications: Work with your healthcare team to identify and implement lifestyle changes that may help prevent recurrences.
  6. Explore complementary therapies: Some individuals may benefit from integrative approaches like acupuncture or herbal remedies, but always consult with your healthcare provider before starting any new treatments.

Long-term management of recurrent persistent low grade fevers often requires a collaborative approach between the individual and their healthcare team. Open communication and a proactive attitude towards health can lead to better outcomes and improved quality of life.

Persistent low grade fever: Causes and treatments

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Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we:

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The normal human body temperature is about 98.6°F, but it fluctuates throughout the day. A low grade fever is when the body temperature rises slightly, usually between about 100.5°F and 102.2°F.

The fever is persistent when the body temperature stays in this range for more than 2 weeks.

A fever is commonly a result of the body trying to fight off an infection or another illness. However, some cases are more difficult to diagnose and treat.

Continue reading to learn more about the symptoms, causes, and treatment of a persistent low grade fever.

Share on PinterestIf the body is fighting off an infection, a person may experience a persistent low grade fever.

Some people may hardly notice that they have a low grade fever. However, others may experience various symptoms, including:

  • feeling warm to the touch
  • sweating
  • chills
  • shivering
  • headaches
  • muscle aches
  • dehydration
  • a general feeling of being unwell

A persistent low grade fever is typically a sign that the body is fighting off an infection or another health issue and has raised its temperature to help these efforts.

These underlying issues can include:

Respiratory infections

Respiratory infections can cause a persistent low grade fever. Some of the most common respiratory infections, such as a cold or the flu, may cause a low grade fever that lasts for as long as the body takes to fight off the infection.

Other symptoms that may indicate a respiratory infection include:

  • coughing
  • sneezing
  • a stuffy or runny nose
  • a sore throat
  • chills
  • general fatigue
  • lack of appetite

Many simple respiratory infections do not require treatment, and the symptoms will go away in time.

Urinary tract infections

A urinary tract infection (UTI) may also be the underlying cause of a low grade fever. A UTI is a bacterial infection that occurs when bacteria multiply anywhere in the urinary tract, which includes the bladder, urethra, kidneys, and ureters.

In addition to a low grade fever, the person may experience symptoms such as:

  • pain in the abdomen
  • a burning sensation while peeing
  • frequent urination
  • a constant urge to urinate
  • dark urine

Most UTIs are simple to treat with antibiotics. The doctor may analyze a urine sample to determine the precise type of bacteria causing the infection to ensure that they prescribe the right treatment.

Other infections

Share on PinterestA person should talk to their doctor if they experience any symptoms of infection alongside a fever.

Almost any infection can cause a fever. A fever is one of the body’s natural responses to foreign invaders. The body may keep its core temperature elevated while it is fighting off the infection.

Other sources of infections that may cause a low grade fever include:

  • food poisoning
  • exposure to pathogens from livestock
  • tuberculosis
  • meningitis

Anyone experiencing symptoms of infection alongside a fever should see a doctor if the symptoms do not improve with rest and time.

Medications

Some medications can cause many different side effects, which may include a low grade fever. People can check the information on side effects and interactions that comes in the packaging or seek advice from a pharmacist.

As the author of a 2018 review notes, if the medication is the cause, the fever should go away very quickly — typically within 72 hours — once the person stops taking the drug.

Stress

Chronic stress may cause a low grade fever. A research paper from 2015 notes that a fever due to stress is most common in young women.

Reducing stress levels may resolve the fever in these cases.

Cancer

In rare cases, a persistent low grade fever with no known cause may be a sign of cancer.

A persistent fever can be a symptom of leukemia, Hodgkin disease, or non-Hodgkin lymphoma.

The person may also experience other symptoms of cancer, including:

  • persistent fatigue
  • weakness
  • headaches
  • infections
  • lack of appetite
  • excessive bruising or bleeding
  • unexplained weight loss
  • enlarged lymph nodes
  • excessive sweating at night

Many of these symptoms are not unique to cancer, however.

Anyone who experiences these symptoms along with a low grade fever should see a doctor for a diagnosis.

Chronic disorders

Many other chronic disorders may cause symptoms such as a low grade fever, including:

  • thromboembolic disease
  • arthritis
  • lupus
  • gout
  • thyroiditis
  • serum sickness-like reactions
  • serotonin syndrome
  • neuroleptic malignant syndrome

Diagnosing a persistent low grade fever may involve several different tests to eliminate potential causes.

The doctor will generally carry out a physical examination and question the person regarding additional symptoms and whether they have any chronic conditions.

The doctor may also ask about any medications that the person takes so that they can eliminate them as a cause of the fever.

They may order blood tests, such as a complete blood count (CBC), to get an overview of the person’s health. The results may help them decide which other tests, if any, they need to order.

If the doctor suspects that the person has a UTI, they may ask them for a sample of their urine to test.

Share on PinterestOTC drugs may help treat a low grade fever at home.

Treatment for a persistent low grade fever will depend on the cause. For instance, minor infections may not need treatment at all, whereas issues such as cancer require extensive treatment.

To alleviate the symptoms of a low grade fever at home, a person can try over-the-counter (OTC) drugs, such as ibuprofen (Advil) or acetaminophen (Tylenol).

A fever can cause dehydration, so it is vital to drink plenty of water.

It is important to treat a low grade fever in children, who may be more sensitive to temperature changes. Using children’s versions of OTC drugs may help control the fever while waiting to see a doctor.

A persistent low grade fever is a sign of an underlying issue, such as a mild infection or chronic condition. The fever may persist while the person is fighting off the infection.

For the most part, persistent low grade fevers are not a cause for concern. However, it is important to monitor the fever to see whether it gets worse.

Anyone who is concerned about their symptoms or experiences a persistent low grade fever for more than 10 days should see a doctor.

SHOP FOR OTC DRUGS

The drugs listed in this article are available online:

  • Ibuprofen
  • Acetaminophen

Persistent low grade fever: Causes and treatments

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission Here’s our process.

Medical News Today only shows you brands and products that we stand behind.

Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we:

  • Evaluate ingredients and composition: Do they have the potential to cause harm?
  • Fact-check all health claims: Do they align with the current body of scientific evidence?
  • Assess the brand: Does it operate with integrity and adhere to industry best practices?

We do the research so you can find trusted products for your health and wellness.

Read more about our vetting process.

Was this helpful?

The normal human body temperature is about 98.6°F, but it fluctuates throughout the day. A low grade fever is when the body temperature rises slightly, usually between about 100.5°F and 102.2°F.

The fever is persistent when the body temperature stays in this range for more than 2 weeks.

A fever is commonly a result of the body trying to fight off an infection or another illness. However, some cases are more difficult to diagnose and treat.

Continue reading to learn more about the symptoms, causes, and treatment of a persistent low grade fever.

Share on PinterestIf the body is fighting off an infection, a person may experience a persistent low grade fever.

Some people may hardly notice that they have a low grade fever. However, others may experience various symptoms, including:

  • feeling warm to the touch
  • sweating
  • chills
  • shivering
  • headaches
  • muscle aches
  • dehydration
  • a general feeling of being unwell

A persistent low grade fever is typically a sign that the body is fighting off an infection or another health issue and has raised its temperature to help these efforts.

These underlying issues can include:

Respiratory infections

Respiratory infections can cause a persistent low grade fever. Some of the most common respiratory infections, such as a cold or the flu, may cause a low grade fever that lasts for as long as the body takes to fight off the infection.

Other symptoms that may indicate a respiratory infection include:

  • coughing
  • sneezing
  • a stuffy or runny nose
  • a sore throat
  • chills
  • general fatigue
  • lack of appetite

Many simple respiratory infections do not require treatment, and the symptoms will go away in time.

Urinary tract infections

A urinary tract infection (UTI) may also be the underlying cause of a low grade fever. A UTI is a bacterial infection that occurs when bacteria multiply anywhere in the urinary tract, which includes the bladder, urethra, kidneys, and ureters.

In addition to a low grade fever, the person may experience symptoms such as:

  • pain in the abdomen
  • a burning sensation while peeing
  • frequent urination
  • a constant urge to urinate
  • dark urine

Most UTIs are simple to treat with antibiotics. The doctor may analyze a urine sample to determine the precise type of bacteria causing the infection to ensure that they prescribe the right treatment.

Other infections

Share on PinterestA person should talk to their doctor if they experience any symptoms of infection alongside a fever.

Almost any infection can cause a fever. A fever is one of the body’s natural responses to foreign invaders. The body may keep its core temperature elevated while it is fighting off the infection.

Other sources of infections that may cause a low grade fever include:

  • food poisoning
  • exposure to pathogens from livestock
  • tuberculosis
  • meningitis

Anyone experiencing symptoms of infection alongside a fever should see a doctor if the symptoms do not improve with rest and time.

Medications

Some medications can cause many different side effects, which may include a low grade fever. People can check the information on side effects and interactions that comes in the packaging or seek advice from a pharmacist.

As the author of a 2018 review notes, if the medication is the cause, the fever should go away very quickly — typically within 72 hours — once the person stops taking the drug.

Stress

Chronic stress may cause a low grade fever. A research paper from 2015 notes that a fever due to stress is most common in young women.

Reducing stress levels may resolve the fever in these cases.

Cancer

In rare cases, a persistent low grade fever with no known cause may be a sign of cancer.

A persistent fever can be a symptom of leukemia, Hodgkin disease, or non-Hodgkin lymphoma.

The person may also experience other symptoms of cancer, including:

  • persistent fatigue
  • weakness
  • headaches
  • infections
  • lack of appetite
  • excessive bruising or bleeding
  • unexplained weight loss
  • enlarged lymph nodes
  • excessive sweating at night

Many of these symptoms are not unique to cancer, however.

Anyone who experiences these symptoms along with a low grade fever should see a doctor for a diagnosis.

Chronic disorders

Many other chronic disorders may cause symptoms such as a low grade fever, including:

  • thromboembolic disease
  • arthritis
  • lupus
  • gout
  • thyroiditis
  • serum sickness-like reactions
  • serotonin syndrome
  • neuroleptic malignant syndrome

Diagnosing a persistent low grade fever may involve several different tests to eliminate potential causes.

The doctor will generally carry out a physical examination and question the person regarding additional symptoms and whether they have any chronic conditions.

The doctor may also ask about any medications that the person takes so that they can eliminate them as a cause of the fever.

They may order blood tests, such as a complete blood count (CBC), to get an overview of the person’s health. The results may help them decide which other tests, if any, they need to order.

If the doctor suspects that the person has a UTI, they may ask them for a sample of their urine to test.

Share on PinterestOTC drugs may help treat a low grade fever at home.

Treatment for a persistent low grade fever will depend on the cause. For instance, minor infections may not need treatment at all, whereas issues such as cancer require extensive treatment.

To alleviate the symptoms of a low grade fever at home, a person can try over-the-counter (OTC) drugs, such as ibuprofen (Advil) or acetaminophen (Tylenol).

A fever can cause dehydration, so it is vital to drink plenty of water.

It is important to treat a low grade fever in children, who may be more sensitive to temperature changes. Using children’s versions of OTC drugs may help control the fever while waiting to see a doctor.

A persistent low grade fever is a sign of an underlying issue, such as a mild infection or chronic condition. The fever may persist while the person is fighting off the infection.

For the most part, persistent low grade fevers are not a cause for concern. However, it is important to monitor the fever to see whether it gets worse.

Anyone who is concerned about their symptoms or experiences a persistent low grade fever for more than 10 days should see a doctor.

SHOP FOR OTC DRUGS

The drugs listed in this article are available online:

  • Ibuprofen
  • Acetaminophen

What to do at a temperature without symptoms of the disease > Rubric in Samara

The temperature, which is not much different from the norm, but is already a sign of ill health, is usually called low-grade in medicine.

In this situation, the thermometer may show 37.0 – 37.5°C for a long time. Sometimes the indicators can reach 37.9 ° C. If no other symptoms bother a person, doctors will have to conduct a series of additional tests to understand the cause. Prolonged subfebrile temperature is a special subject of study in therapeutic practice. Patients with such complaints come to the appointment quite often. According to statistics, in 70 – 80% of cases, protracted subfebrile condition occurs in young women with signs of asthenia, in those who suffer from increased fatigue, weakness, irritability, nervousness, have sleep disturbances and other psychopathological disorders. If the fever persists for more than a month or two, then a comprehensive examination is necessary.

Causes

Increased body temperature is caused by certain proteins – pyrogens. They can enter the body from the external environment or be produced spontaneously inside it. These proteins have a connection with the hypothalamus, activate the immune system and affect the general well-being of a person.

In some cases, subfebrile temperature may indicate that a disease has been infected. In others – about a malfunction in the body. Also, sometimes there are congenital pathologies that cause an increase in temperature.

Disorder of thermoregulation can serve as one of the signs of vegetovascular dystonia. With such a disease, a temperature often appears without symptoms of a cold. A person complains of heaviness in the head, weakness, pain. The heat in the body is abruptly replaced by chills. Cold palms and feet may indicate the local nature of thermoregulation failures. In most patients with dystonia, fever can persist for up to several months.

There are cases when low-grade fever causes an increase in the number of simple microbes, which in normal times are not dangerous. This is due to a weakened immune system. The reason for the increase in temperature can also be autoimmune processes, when the body’s defenses mistakenly begin to attack healthy tissue.

— In case of any increase in temperature, you should contact your local doctor. The specialist will first prescribe a general blood and urine test. Based on their results, he will decide on further examination and treatment. In general, absolutely any stress, including emotional stress, can affect the increase in body temperature. Oleg Fatenkov, chief therapist of the Samara region

In addition, doctors say that often a temperature of 37.0 – 37.5 ° C is a sign of an allergy of a latent or overt course. If the indicator reaches 38 ° C and lasts for a long time, then this can be a sign of serious diseases: bronchitis, sinusitis, tuberculosis, latent infections, tumor processes.

Subfebrile condition can also be caused by changes in temperature, stress, hormonal imbalance, and taking certain medications.



What to do?

In any case, a visit to a specialist is necessary. Do not try to bring down the temperature at home with drugs without the advice of a doctor.

Usually low-grade fever does not require taking antipyretics. However, there are exceptions. For example, it is necessary for pregnant women, people with diseases of the nervous system, and patients who are prone to convulsions to bring down a temperature that exceeds 37. 50 C.

Instead of medicines, you can try to stabilize the emotional state and relieve tension, do aromatherapy, put a cloth soaked in water on the forehead and temples, drink fortified tea. But if this does not help, it is necessary to undergo an examination, since serious problems can be behind a minor failure. Most often, doctors prescribe a general and biochemical blood test, a general urinalysis, an ultrasound examination of internal organs, a study for genital infections, and recommend that you undergo an examination with a dentist.

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What tests to take with a long subfebrile temperature in the Optimum medical laboratory in Sochi (Adler)

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Subfebrile temperature is the thermal state of the human body at the level of 37-37. 5°C for a long time. In this case, the symptoms of any disease may be completely absent and malaise may appear. We are talking about subfebrile temperature in this condition for many days in a row.

Causes of subfebrile temperature

The thermoregulation system of the human body is controlled by an important part of the brain – the hypothalamus. The influence of endogenous or exogenous substances (pyrogens) provokes a dynamic restructuring of the level of heat transfer.

Factors causing subfebrile temperature are numerous:

  • infectious processes – SARS, mononucleosis, influenza, tuberculosis, enterocolitis, herpes – and cytomegaloviruses, AIDS, etc.;
  • parasitic infestations – ascariasis, giardiasis, toxoplasmosis, salmonellosis;
  • autoimmune pathologies – systemic lupus erythematosus, vasculitis, rheumatoid arthritis, celiac disease;
  • inflammatory diseases – cystitis, pancreatitis, pneumonia, pyelonephritis, tonsillitis, otitis;
  • disorders of the functional activity of the thyroid gland;
  • severe allergic reaction;
  • pathological hemolysis , which causes tissue necrosis during a heart attack, stroke, traumatic toxicosis.

What tests to take?

Subfebrile temperature is a sign of a number of pathological processes that can occur without severe clinical symptoms. With the problem of prolonged subfebrile condition, you can contact your family doctor, phthisiatrician, otolaryngologist, infectious disease specialist, endocrinologist. However, in order to make a competent diagnosis, a comprehensive examination and a number of laboratory tests will be required:

  • General clinical blood and urine tests.
  • Rheumatological profile, which allows to detect pathological processes in the articular and connective tissues.
  • Fecal analysis.
  • General clinical examination of sputum – to detect mycobacterium that causes tuberculosis.
  • Blood cultures for sterility – to confirm or refute the presence of pathogenic bacteria.
  • Blood tests for HIV and TORCH infections, syphilis, viral hepatitis.
  • Bacteriological culture from the nasopharynx.